
Nezumigaseki, one of the three ancient barriers of Oshu, crossed by Minamoto no Yoshitsune and Matsuo Basho (Tsuruoka City, Yamagata Prefecture)
table of contents
- 1 The "Early Modern Nembu Pass Site" developed by the Shonai feudal lord and the "Ancient Nezumi Pass Site" excavated and developed in the Showa era
- 2 "Nezumi no Seki" is a famous poetic site from the Heian period
- 3 The site of Nezumigaseki, which was on the border, is still on the prefectural border
- 4 Nezugaseki Coast, where Minamoto no Yoshitsune is said to have arrived during his escape to the Tohoku region
- 5 Bentenjima, where Yoshitsune is said to have landed and where the "Love Lighthouse" is popular
- 6 Nezumigaseki Pass, a place that Matsuo Basho also crossed
- 7 The "Nenju no Matsu" Pine has been cared for by generations since the Edo period
- 8 Atsumi Onsen, the historic hot spring where Matsuo Basho stayed
Nezugaseki (also known as Nenjugaseki or Nenjuseki)was a checkpoint that served as a fort during the Ritsuryo political period (Asuka to Heian periods) to prevent invasions from the Tohoku region (Emishi), which the Yamato court did not yet control, into its controlled territories (west of the Kanto and Hokuriku regions).
along the Pacific coastIt is believed that the Nakoso Barrier (Fukushima Prefecture)inlandthe Shirakawa Barrierwere established for the same purpose, and that people's movement was strictly monitored.
Eventually, the power of the Imperial Court extended to the Tohoku region, and checkpoints remained in place for some time even after Dewa Province (Yamagata Prefecture and Akita Prefecture) and Mutsu Province (Fukushima Prefecture, Miyagi Prefecture, Iwate Prefecture, Aomori Prefecture) were established

Thesethe "Three Ancient Checkpoints of Oshu,"gradually ceased to serve their purpose in the late Heian period as exchanges with the Tohoku region became more active. By the Edo period, all three had disappeared without a trace, and it was even uncertain whether they had ever existed.
However, because their names appear in waka poetry from the Nara and Heian periods, the sites of the three checkpoints were discovered and excavated by the feudal lords who ruled the areas, and they were developed into tourist attractions
The "Early Modern Nembu Pass Site" developed by the Shonai feudal lord and the "Ancient Nezumi Pass Site" excavated and developed in the Showa era

Nezumigaseki was located on the border between Dewa Province and Echigo Province (Niigata Prefecture), but like other places, its location has not been identified
However, during the Edo period, the lord of the Shonai Domain, who ruled the area,the "Nenju Barrier Site"developed

For a long time, the area developed by the Shonai Domain was considered the site of the Nezugaseki fortress, but in 1968 (Showa 43), an archaeological excavation revealed the actual site of Nezugaseki closer to the prefectural border. As a result, the newly discovered site of Nezugaseki is nowthe "Ancient Nezugaseki Site," and the area developed by the Shonai Domainthe "Early Modern Nenjuseki Site,"is now open as
At the same time as the excavation of the "Ancient Nezumigaseki Site," remains of buildings presumed to have been for military purposes, as well as remains of iron and salt production and pottery kilns (Sekido Production Site) were unearthed in the settlement (Sekido Shuraku) located in front of the gate of the checkpoint, providing definitive evidence that this was the site of a checkpoint
*The "Ancient Nezumigaseki Site and Sekido Production Site" and the "Early Modern Prayer Bead Site" are designated historic sites by Tsuruoka City
Ancient Nezumigaseki Site, Sekido Production Site <Information>
- Facility name: Ancient Nezumigaseki Site, Sekido Production Site
- Address: 45-1 Nezumigaseki Hei, Tsuruoka City, Yamagata Prefecture
- Phone number: 0235-43-3547 (Atsumi Tourism Association)
- Facility name: Early modern Nenju Barrier Site
- Address: 246 Nezumigaseki, Tsuruoka City, Yamagata Prefecture
- Phone number: 0235-43-3547 (Atsumi Tourism Association)
Google Map
"Nezumi no Seki" is a famous poetic site from the Heian period
The existence of "Nezugaseki" became known to later generations through "NōinUtamakura," a treatise on poetics left behind by Nōin, a monk of the Heian period who also appears in the "Ogura Hyakunin Isshu".
"Utamakura"refers to famous places that appear in tanka poetry, and Nōin compiled a list of famous places throughout Japan that are sung about as utamakura, titled "Nōin Utamakura."

"Nezumi no Seki" is the first place that is mentioned in the section introducing the utamakura of Dewa Province in "Noin Utamakura."
This is the first appearance of Nezumigaseki in history, but unfortunately no poems have been found that mention Nezumigaseki
The site of Nezumigaseki, which was on the border, is still on the prefectural border

Nezumigaseki was located on the border between Dewa Province and Echigo Province, and is still the prefectural border between Yamagata Prefecture and Niigata Prefecture today, and the Yamagata Prefecture/Niigata Prefecture Border Marker, which marks the prefectural border, stands near the "Ancient Nezumigaseki Site."
It is so central to the town that you might think this is the prefectural border, but in the days of Nezumigaseki, there was only one road, the Hokuriku Road (an ancient highway), that passed through here
Nezugaseki Coast, where Minamoto no Yoshitsune is said to have arrived during his escape to the Tohoku region

During the turbulent period of the transition from the Heian period to the Kamakura period, Minamoto no Yoshitsune, who was the driving force behind the downfall of the Taira clan along with Minamoto no Yoritomo, was driven out of the capital by his brother Yoritomo, who feared his power. Yoshitsune then headed north across the Sea of Japan, relying on the Oshu Fujiwara clan, who had enormous influence in Hiraizumi, Oshu (Iwate Prefecture), and where Yoshitsune himself had spent his youth
It is said that Yoshitsune landed on the coast at Nezumigaseki and passed through the gates of Nezumigaseki on his way to Hiraizumi. This is inferred from the military tale "Gikeiki," written around the Muromachi period, and a monument marking the place where Yoshitsune landed has been erected near the coast

Bentenjima, where Yoshitsune is said to have landed and where the "Love Lighthouse" is popular

Bentenjima is a small island on Nezumigaseki Coast with a circumference of 800m and a 15-minute walk around. Previously, it was only accessible at low tide when it was connected to the mainland, but now a footbridge has been built and it is accessible at any time
There is a legend that Minamoto no Yoshitsune landed on the island while traveling north to seek help from the Oshu Fujiwara clan, and a monument was erected at the island's Itsukushima Shrine (which was erected when the NHK historical drama "Minamoto no Yoshitsune" was aired in 1966)
At the tip of the Sea of Japan side is Nezumigaseki Lighthouse, which has been certified as a "lighthouse to fall in love with," and the sunset from the observation deck is a spectacular sight

Bentenjima <Information>
- Facility name: Scenic Bentenjima
- Address: Nezumigaseki Coast, Tsuruoka City, Yamagata Prefecture
- Phone number: 0235-43-3547 (Atsumi Tourism Association)
Google Map
Nezumigaseki Pass, a place that Matsuo Basho also crossed

During his journey along the Narrow Road to the Deep North, Matsuo Basho crossed Nezumigaseki and headed towards Echigo
After visiting the Dewa Sanzan (Mount Haguro, Mount Gassan, and Mount Yudono), we enjoyed a boat trip on the Mogami River and arrived in Sakata (Sakata City, Yamagata Prefecture), facing the Sea of Japan, where we stayed for a few days. After that, we went a little further north to Kisakata (Nikaho City, Akita Prefecture), and when we returned to Sakata,
Atsumiyama and Fukiura in the evening
Basho visited Sakata during the hot summer months (June in the lunar calendar), so it seems that Mount Atsumi (736m above sea level) visible in the distance was enjoying the cool evening breeze at Fukiura (Sakata coast)
at the foot of Mount AtsumiAtsumi Onsen (Atsumi Hot Springs), and crossed the Nezugaseki Pass. This was on June 27, 1689.
The "Nenju no Matsu" Pine has been cared for by generations since the Edo period

The "Prayer Bead Pine"is a black pine tree that was planted in the garden of the Murakamiya Inn (Murakamiya Inn, which closed in 1960) about 400 years ago. It has been cared for by generations of the family and, even after the inn closed, has been carefully protected by the local government.
The main trunk is about 4m tall and has a circumference of about 1.2m, but the branches stretch out about 20m towards the east, creeping along the ground. Currently, the "Nenju no Matsu Garden" has been developed around the tree, and it has become a place of relaxation for the local residents
*The Murakamiya Prayer Beads Pine Tree is a natural monument of Yamagata Prefecture
Nenju no Matsu Garden <Information>
- Facility name: Nenju no Matsu Garden
- Address: 87, Nezumigaseki Okiya, Tsuruoka City, Yamagata Prefecture, and other locations
- Phone number: 0235-43-3547 (Atsumi Tourism Association)
- Opening hours:
- April to October: 9:00 to 17:00
- November to March: 9:00 to 16:00
- Closed: Open daily
- Admission fee: 100 yen (contribution)
Google Map
Atsumi Onsen, the historic hot spring where Matsuo Basho stayed

Atsumi Onsenis a hot spring that springs up at the foot of Mount Atsumi and is said to have a history of over 1,000 years. During the Edo period, the Shonai Domain's bathhouse was established there, and it was a bustling hot spring resort.
The spring water is a sodium-calcium chloride-sulfate spring with a source temperature of 68°C. It is effective for cuts, burns, eczema, skin diseases, neuralgia, rheumatism, gynecological diseases, recovery from illness, and general health promotion
There are six hot spring inns (members of the Atsumi Onsen Ryokan Cooperative Association) and one day-trip bathing facility that is also open to tourists. In addition to the abundant and beneficial hot springs, Atsumi Onsen boasts the finest hospitality and the bounty of the Sea of Japan and the Shonai Plain. If you are visiting Nezumigaseki, we recommend adding Atsumi Onsen to your itinerary
Atsumi Onsen <Information>
- Facility name: Atsumi Onsen
- Address: Yuatsumi, Tsuruoka City, Yamagata Prefecture
- Phone number: 0235-43-3547 (Atsumi Tourism Association)
- URL:Atsumi Onsen



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